Question

Rohan took a small piece of magnesium ribbon. He rubbed it with a sand paper and brought it near the flame with the help of tongs. Magnesium ribbon is burnt with a dazzling white flame and produced a white ash at the end.

a. What is the white ash obtained at the end of the reaction?
b. Why did he rub magnesium ribbon with a sand paper?

Answer 1

Answer:

Explanation:

a] white ash is MgO

b] to remove the layer of oxide and nitride

Answer 2

Answer:

(a) MgO

(b) we rub magnesium ribbon with sand paper to remove oxide layer due to which burning speed up